Stretcher bar is provided________________?
(A) to permit lateral movement of the tongue rail
(B) to maintain the two tongue rails at the exact distance
(C) to ensure exact gauge at the toe of the switch as well as the nose of crossing
(D) to prevent any vertical movement between the wing rail and nose of crossing
| Share this... |
 Facebook
|
 Twitter
|
 Linkedin
|
 Whatsapp
|
Your email address will not be published. Required fields are marked *